3n-6=-21

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Solution for 3n-6=-21 equation: 


Simplifying
3n + -6 = -21

Reorder the terms:
-6 + 3n = -21

Solving
-6 + 3n = -21

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '6' to each side of the equation.
-6 + 6 + 3n = -21 + 6

Combine like terms: -6 + 6 = 0
0 + 3n = -21 + 6
3n = -21 + 6

Combine like terms: -21 + 6 = -15
3n = -15

Divide each side by '3'.
n = -5

Simplifying
n = -5

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